12V, 4CH Channel 433Mhz Wireless Remote Control Switch Receiver 1 Transmitter Warm SMD LED and general feedback Applications is

and general feedback Applications is provided by the high gain and wide operating voltage range

Externally programmable accurate current limit

Body Shape Hexagonal Gender Male-Female Hex Size Across Flat  4

Tap Module/ Knock Sensor: KY-031

12V, 4CH Channel 433Mhz Wireless Remote Control Switch Receiver 1 Transmitter Warm SMD LED and general feedback Applications is12V, 4CH Channel 433Mhz Wireless Remote Control Switch Receiver 1 Transmitter Wireless 433MHz 12V 4 Channel Relay Module with RF Remote Management A wireless remote can control a switch without a battery through a wireless RF connection. The relays may regulate 240 V AC appliances, motors, other electrical circuits, and so on. When the remote is in line of sight, the board has a range of 50m and an interior range of 25m. The RF connection on this